Clean Audio for TV broadcast: An Object-Based Approach for Hearing-Impaired Viewers - April 2015
Audibility of a CD-Standard A/DA/A Loop Inserted into High-Resolution Audio Playback - September 2007
Sound Board: Food for Thought, Aesthetics in Orchestra Recording - April 2015
Reduction of Distortion in Conical Horn Loudspeakers at High Levels
Many horns have audible distortion at high levels. We measured a horn consisting of six conical sections with a 10” element at 99 dB SPL. A closed back gave maximum 2.4% second harmonic and 3.4% third harmonic distortion in the 100-1000 Hz range, while an open construction had 1.25% and 0.6%. A new semi-permeable back chamber reduced this to 0.7% and 0.35%. We hypothesize that the distortion is partly due to the non-linear compliance of air in the back chamber, and partly is due to the element’s interaction with the front and back loading of the horn, and that the new construction loads the element in a more optimal way.
Click to purchase paper or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member and would like to subscribe to the E-Library then Join the AES!
This paper costs $20 for non-members, $5 for AES members and is free for E-Library subscribers.